422602644 has 48 divisors (see below), whose sum is σ = 1032796800. Its totient is φ = 134238720.

The previous prime is 422602619. The next prime is 422602669. The reversal of 422602644 is 446206224.

It is an interprime number because it is at equal distance from previous prime (422602619) and next prime (422602669).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74832 + ... + 80280.

It is an arithmetic number, because the mean of its divisors is an integer number (21516600).

Almost surely, 2^422602644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422602644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (516398400).

422602644 is an abundant number, since it is smaller than the sum of its proper divisors (610194156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422602644 is a wasteful number, since it uses less digits than its factorization.

422602644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5760 (or 5758 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 422602644 is about 20557.3014766044. The cubic root of 422602644 is about 750.4309487746.

Adding to 422602644 its reverse (446206224), we get a palindrome (868808868).

The spelling of 422602644 in words is "four hundred twenty-two million, six hundred two thousand, six hundred forty-four".